A battery pack which is placed below a floor panel of a vehicle, includes a battery, a case for accommodating the battery, and a pressure release mechanism for releasing pressure inside the case. The pressure release mechanism includes a communication member which has one end and the other end and where the one end is connected to the case, and a gas discharge unit connected to the other end of the communication member and having a labyrinth structure.

A battery module includes battery stack (2) including a plurality of stacked battery cells (1), a pair of end plates (3) disposed at both end parts in a stacking direction of battery stack (2), bind bar (4) in which the pair of end plates (3) are coupled, and electronic circuit block (6) mounted with voltage detection circuit (22) that detects a voltage of battery cells (1). Electronic circuit block (6) is disposed on an outer surface of both end plates (3) disposed at both end parts of battery stack (2), and electronic circuit block (6) is connected to battery cells (1) via voltage detection line (19).

This application provides a battery, an apparatus, and a manufacturing method and an apparatus of batteries, and relates to the field of energy storage technologies. The battery includes two battery cells and two discharge channels. The two battery cells each include a pressure relief mechanism, and the pressure relief mechanism is configured to be actuated when internal pressure or temperature in the battery cell reaches a threshold, to release the internal pressure. The two discharge channels are configured to collect emissions respectively from the corresponding battery cell when the pressure relief mechanism is actuated.

A battery module includes a cell assembly including a plurality of battery cells, and a module housing having an arrangement space for accommodating the cell assembly and a cover plate covering a top surface of the cell assembly. The cover plate has at least one discharge hole for discharging gas generated in the cell assembly. A blocking member is disposed between the top surface of the cell assembly and the cover plate to block flame or a combustion material from being discharged externally of the module housing through the discharge hole.

A system includes a battery mounting area, a venting area fluidly isolated from the battery mounting area, and a battery cell arranged at least partially within the battery mounting area. The battery cell includes at least one safety vent that is fluidly coupled to the venting area.

A battery housing includes an electrical cavity configured to accommodate battery cells. At least one battery cell includes a pressure relief mechanism configured to be actuated in response to internal pressure or temperature of the at least one battery cell reaching a threshold to relieve the internal pressure. The housing further includes a collection cavity configured to collect emissions from the at least one battery cell in response to the pressure relief mechanism being actuated, a separation component configured to separate the electrical cavity and the collection cavity, a partition structure configured to partition the collection cavity into a first cavity and a second cavity, and a flow channel baffle arranged in the second cavity and configured to form a flow channel for guiding the emissions. The partition structure is provided with an exhaust vent configured to guide the emissions in the first cavity into the second cavity.

A battery housing includes an electrical cavity configured to accommodate battery cells. At least one battery cell includes a pressure relief mechanism configured to be actuated in response to internal pressure or temperature of the at least one battery cell reaching a threshold to relieve the internal pressure. The housing further includes a collection cavity configured to collect emissions from the at least one battery cell in response to the pressure relief mechanism being actuated, a separation component configured to separate the electrical cavity and the collection cavity, a partition structure configured to partition the collection cavity into a first cavity and a second cavity, and a flow channel baffle arranged in the second cavity and configured to form a flow channel for guiding the emissions. The partition structure is provided with an exhaust vent configured to guide the emissions in the first cavity into the second cavity.

A battery pack exhaust duct includes a guide tube, an exhaust inlet, an exhaust outlet, and exhaust guide components. The exhaust guide components include first and second exhaust guide components. Each of the exhaust guide components has a first part and a second part. The first part has a first end that is nearer to the interior surface of the guide tube. The first part extends away from the interior surface, and toward the exhaust inlet. The second part has a first end that is nearer to the first part. The second part extends toward the interior surface. The second part has a second end that is apart from the interior surface. The second end of the second part of the first exhaust guide component and the second end of the second part of the second exhaust guide component are displaced along axis X along which the guide tube extends.

A battery pack exhaust duct includes a guide tube, an exhaust inlet, an exhaust outlet, and exhaust guide components. The exhaust guide components include first and second exhaust guide components. Each of the exhaust guide components has a first part and a second part. The first part has a first end that is nearer to the interior surface of the guide tube. The first part extends away from the interior surface, and toward the exhaust inlet. The second part has a first end that is nearer to the first part. The second part extends toward the interior surface. The second part has a second end that is apart from the interior surface. The second end of the second part of the first exhaust guide component and the second end of the second part of the second exhaust guide component are displaced along axis X along which the guide tube extends.

This application relates to an end cover assembly, a battery cell, a degassing method, a battery, and an electric apparatus. The end cover assembly includes: an end cover plate provided with a degassing hole, where the degassing hole penetrates through the end cover plate; and a degassing apparatus mounted in the degassing hole, where the degassing apparatus includes a columnar portion, a first limiting portion, a second limiting portion, a first elastic member, and a second elastic member. The columnar portion penetrates through the degassing hole. The first limiting portion and the second limiting portion are respectively located on an outer side and an inner side of the end cover plate. The first elastic member is located between the first limiting portion and the end cover plate. The second elastic member is located between the second limiting portion and the end cover plate.